liftoff /'lɪftˌɒf/ 📖 中文释义 n. (火箭发射时)起飞, 启动 🔗 释义中的汉语词起飞启动 📘 English Definition(英文释义) n. the initial ascent of a rocket from its launching pad ← liftman L 字母词表 lifton →